MERSEN Fuse: Class L, A4BY Series, Bolt-On Body, Time-Delay, 4 kA, 600 V AC
The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY4000) is a 4 kA, 600 V AC, 300 V DC industrial fuse with a bolt-on body. This time-delay fuse is designed for overcurrent protection in electrical systems.
SKU 3G-OTH-26383
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The MERSEN A4BY Series Class L Time-Delay Bolt-On Fuse (MPN A4BY4000) is a 4 kA, 600 V AC, 300 V DC industrial fuse with a bolt-on body. This time-delay fuse is designed for overcurrent protection in electrical systems.
Frequently Asked Questions
What is the MERSEN A4BY4000 fuse used for?
The MERSEN A4BY4000 is a Class L time-delay bolt-on fuse rated 4 kA, 600 V AC, 300 V DC. It provides overcurrent protection in industrial electrical systems, such as motor circuits, feeders, and switchboards, where high interrupting capacity and delayed response to inrush currents are required.
What are the specifications of the MERSEN A4BY4000 fuse?
The MERSEN A4BY4000 is a Class L, A4BY Series, bolt-on body, time-delay fuse. It has an interrupting rating of 4 kA, operates at 600 V AC and 300 V DC, and is designed for overcurrent protection in industrial electrical distribution systems.
Where to buy the MERSEN A4BY4000 fuse worldwide?
3G Electric supplies the MERSEN A4BY4000 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this Class L time-delay bolt-on fuse.
How to select the correct MERSEN A4BY4000 fuse for an application?
To select the MERSEN A4BY4000, verify your system voltage (600 V AC or 300 V DC) and required interrupting rating (4 kA). Ensure the bolt-on body matches your fuse holder. For time-delay applications like motor starting, this fuse handles inrush without nuisance opening. Consult a qualified engineer for coordination studies.
Used in
Common applications for MERSENMERSEN Products
3G Electric supplies MERSEN time-delay bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
